77861041321682 has 8 divisors (see below), whose sum is σ = 116796271584000. Its totient is φ = 38928950793684.

The previous prime is 77861041321681. The next prime is 77861041321699. The reversal of 77861041321682 is 28612314016877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77861041321681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784871582 + ... + 784970777.

It is an arithmetic number, because the mean of its divisors is an integer number (14599533948000).

Almost surely, 2^{77861041321682} is an apocalyptic number.

77861041321682 is a deficient number, since it is larger than the sum of its proper divisors (38935230262318).

77861041321682 is a wasteful number, since it uses less digits than its factorization.

77861041321682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569867160.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 77861041321682 in words is "seventy-seven trillion, eight hundred sixty-one billion, forty-one million, three hundred twenty-one thousand, six hundred eighty-two".